Table 3.

Multivariable Cox proportional hazards regression results for time-to-death.

Outcomes and predictors	HR (95% CI)	P-value
7-day all-cause mortality
High plasma:RBC	0.23 (0.05, 1.01)	0.052
High platelet:RBC	0.51 (0.18, 1.42)	0.197
Treatment arm	2.02 (0.73, 5.59)	0.174
28-day all-cause mortality
High plasma:RBC	0.36 (0.14, 0.97)	0.042
High platelet:RBC	0.58 (0.26, 1.31)	0.193
Treatment arm	1.00 (0.47, 2.13)	0.996

All models were adjusted for baseline MODS, total number of blood products received, ACC and CPB.

Reference groups for plasma:RBC, platelet:RBC, and treatment arm are ‘Low plasma:RBC’, ‘Low platelet:RBC’, and ‘RBC storage ≥21 days’, respectively.